http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
서민수 서울대학교 규장각한국학연구원 2018 한국문화 Vol.0 No.81
This paper is a comprehensive review of the forestry articles of the Gyeongju Basin from the view of ecological environment history. In previous studies, forest space was just a background of human history. From the view of socio-economic history, it has been described as a subject that human beings must develop or overcome to promote agricultural production. However, recent accumulation of research has clarified that the state power seeks to take control of the forest space and its resources. In this paper, I tried to read the forest, which had not been studied in the existing viewpoint, into the historical space that interacted with human society. According to the results of archaeological excavation, the Gyeongju Basin is seen as a rare human space before the 4th century. As human intervention is rare, the forests in the Gyeongju Basin grew lushly. In the lower part of the Gyeongju Basin, wetland was formed as the groundwater level increased. Wetlands flourished in forests like ‘Su(藪)’ covered with vegetation. As the population migrated to the Gyeongju Basin increased and the quality and quantity of steel tools improved, the forests and wetlands of the Gyeongju Basin were cleared. In the early days, forests were cut down and wetlands were buried according to the needs of the dominant layer. However, as the grid-like road network gradually divided into the Gyeongju Basin, forests and wetlands became the subjects of full-scale clearing. The so-called ‘Ri-bang Local Administration(里坊制)’ reflected the natural view that the Gyeongju Basin’s forests and wetlands can be removed at any rate. The forest was originally considered a sacred “outside world” with limited human access. However, forests and wetlands have become fully developed, and development sites have become visible throughout the Gyeongju Basin. As a result, the forest gradually transformed into an ‘inner world’ in which human daily life takes place.
$Pb(Zr_{0.56}Ti_{0.44})O_3$ 강유전체 음극의 전극 모형에 따른 전자 방출 특성
서민수,홍기민,Seo, Min-Su,Hong, Ki-Min 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.4
Electric-field-induced electron emission from the three kinds of $Pb(Zr_{0.56}Ti_{0.44})O_3$ ferroelectric cathodes with different electrode structure has been investigated. Regardless of the electrode structures, a threshold field of the each cathode was 2.5-2.6kV/mm, which is 3 times higher than the coercive field of $Pb(Zr_{0.56}Ti_{0.44})O_3$ material. Although the waveform of the electron currents was affected by the structure of the electrode, no significant difference for the emission properties such as the peak current and the pulse width was observed from the three kinds of the cathodes. However, the current density of the cathode was dependent on the electrode structure. From the simulation of electric field distribution, the surface flashover, and the injury region of the cathode surface, it was proved that the prime electrons were initiated at the electrode-ceramic-vacuum triple point by field emission and the emission currents were strongly enhanced by the surface plasma.
골다공증의 국내 연구 동향에 대한 고찰 - 한의 학술 논문 검색을 중심으로-
서민수,김현철,추원정,정상윤,김세정,최정욱,최요섭,유영기,Seo, Min-Su,Kim, Hyun-Chul,Choo, Won-Jung,Jeong, Sang-Yun,Kim, Se-Jeong,Choi, Jeong-Uk,Choi, Yo-Seob,Yoo, Yung-Ki 척추신경추나의학회 2013 척추신경추나의학회지 Vol.8 No.2
Objectives : The present study examines the domestic trend of Osteoporosis studies in Korea. Method : We reviewed oriental medicine papers published in last ten years (2003-2012). Korean literature search was used for domestic Internet search portal. 'Naver specialized information retrieval', 'Korea Traditional Knowledge Portal', 'Korea Medical Information Portal (OASIS)',' Scientific and Technological Information Integration Services (NDSL)',' Academic Research Information Service (RISS)'as the primary destination of the search were. Since 2003 until 2012, the thesis o'f osteoporosis'and found 92 papers with the search term '(golwi)' to the search terms found in 3 papers Korean medical target of on going research trends in osteoporosis about investigated. Results : 1. We researched 95 papers in 15 journals and patterns of study were as follows : experimental studies were 79(83%), clinical studies were 12(13%), reviewed studies were 3(3%) and etc. were 1(1%). 2. The experimental studies(79) were divided into papers on efficiency testing of herbal medications(67) and herbal acupuncture(12). 3. The clinical studies(12) showed that research has been carried out in the fields of follow up surveys for the herbal medication efficiency testing, basic research, case report, the relativity of osteoporosis to age and sex, and the perception about osteoporosis and korean medicine treatment. 4. The reviewed studies showed that research has been carried out in the fields of osteoporosis about acient literature and domestic studies about herbal medication of osteoporosis. Conclusion : Reviewing the domestic trend of Osteoporosis studies and examining the strong and weak points of those treatments are essential for the future studies. It is anticipated that this review benefits the future in-depth study on the treatments for osteoporosis in Korean medicine.
서민수,김영욱,최지아 중앙대학교 학교체육연구소 2020 Asian Journal of Physical Education of Sport Scien Vol.8 No.4
The purpose of this study is to analyze the effect of an exercise intervention program on falls in the elderly by applying meta-analysis. To this end, through the literature review, 35 korea journal articles were selected and meta-analysis was performed. The research results are as follows. First, the total effect size of the exercise intervention program on falls in the elderly was ES=.879. Second, the size of the effect of exercise intervention on psychological variables and fall-related fitness was in the order of psychological variables (ES=.858) and fall-related fitness (ES=.837). Third, the effect size of exercise intervention according to the sub-factors of psychological variables was large in the order of the effect of preventing falls (ES=1.019) and the fear of falling (ES=.591). Fourth, the size of the effect of exercise intervention according to the sub-factors of physical fitness related to falls is self-control of body (ES=1.068), coordination (ES=.948), muscular endurance (ES=.924), muscle strength (ES=.917), cardiovascular endurance (ES=.910). Fifth, As a result of meta-regression analysis on exercise intervention according to exercise content (period, frequency, time), it was found that the effect increased as the exercise frequency (β=.221 p<.05) increased. 본 연구는 노인 낙상 예방을 위한 운동프로그램에 대해 연구한 문헌들을 수집 후 메타분석을 실시하여 운동프로그램이 노인의 심리 및 신체적 기능에 미치는 효과를 분석하는데 목적이 있다. 이를 위해 먼저 문헌고찰을 실시한 후 국내 학술지 논문 총 35편을 선별하여 분석대상으로 선정하고 메타분석을 수행하였다. 연구의 주요 결과는 다음과 같다. 첫째, 랜덤효과모형에 의해 분석된 노인 낙상 예방을 위한 운동프로그램의 전체 효과 크기는 .879로 나타났다. 둘째, 심리적 변인과 낙상 관련 체력 대한 운동 중재의 효과크기는 심리적 변인(ES=.858), 낙상관련 체력(ES=.837)의 순으로 나타났다. 셋째, 심리적 변인의 하위요인에 따른 운동 중재의 효과크기는 낙상 예방 효능감(ES=1.019), 낙상공포(ES=.591)로 나타났다. 넷째, 낙상 관련 체력의 하위요인에 따른 운동 중재의 효과크기는 조정성(ES=1.068), 협응력(ES=.948), 근지구력(ES=.924), 근력(ES=.917), 심폐지구력(ES=.910)순으로 효과크기가 있는 것으로 나타났다. 다섯째, 운동 중재 프로그램의 기간·빈도·시간에 따른 효과크기의 메타회귀분석을 실시한 결과 운동빈도가 증가할수록 운동중재의 효과(β=.221 P<.05)가 커지는 것으로 나타났다.